    .nav{
        overflow:hidden;
    }
.sk{
    position: absolute;
    left: 160px;
    border-left: 1px solid #c81523;
    top: 30px;
    padding : 3px 0 0 14px ;
}
.sk_list{
    float: left;
}
.sk_con{
    float: left;
}
.sk_list ul li{
    float: left;
}
.sk_list ul li a{
    display: block;
    line-height: 47px;
    font-size: 16px;
    font-weight: 700;
    padding: 0 30px;
    color: #000;
}

.sk_con ul li {
       float: left;  
}
.sk_con ul li  a{
    display: block;
    line-height: 49px;
    font-size: 14px;
    font-weight: 400;
    padding: 0 20px;
   
}
.sk_con ul li:last-child a::after{
         content:'\e900';
         font-family: 'icomoon';
}
.sk_hd ul li {
      text-align: center;
        
}
.sk_bd{
    float: left;
   
}
.sk_bd ul li {
    margin-left: 60px;
    float: left;
    overflow: hidden;
    width: 290px;
    height: 490px;
    border: 1px solid transparent;
}
.sk_bd ul li:nth-child(4n){
    margin-right: 0;
}
.sk_bd ul li:hover {
    border: 1px solid #c81523;
}

